With the advent of cheaper solar cells, I don't expect the price to be sigficantly lower, you still have the guys crawling all over the roof installing the things, hooking up to an inverter, all the wiring etc.....

The researchers say that one of their next steps will be to look for ways to economically mass produce its thin solar cells, but first they have to settle on a formulation. The good news is that thinner solar cells use inherently less material, so should be economical of materials, but we don't know yet the manufacturing costs until they choose a material and characterize it. They plan to experiment with different formulations, hoping to find one that is both efficient and economical to mass produce.